Computers were made pretty recently...so these computers are still imperfect. It's very probable that after a few years, deppending on the system you have your computer will crash. Its practically in the nature of pc itself. Also, I want to say that the most recent cause of crash are viruses. There are so many "species" of viruses these days that you can not avoid a crash...

depends what kind of "crashes" do you mean... it depends..can be viruses[like humans] , spywares ,etc... this is the explorer platform..if you mean the compnents..hmm :-? it's hard..I mean a computer board ussually never crashes...